193147 has 2 divisors, whose sum is σ = 193148. Its totient is φ = 193146.

The previous prime is 193139. The next prime is 193153. The reversal of 193147 is 741391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193147 - 2³ = 193139 is a prime.

193147 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (193247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96573 + 96574.

It is an arithmetic number, because the mean of its divisors is an integer number (96574).

2¹⁹³¹⁴⁷ is an apocalyptic number.

193147 is a deficient number, since it is larger than the sum of its proper divisors (1).

193147 is an equidigital number, since it uses as much as digits as its factorization.

193147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 193147 is about 439.4849257938. The cubic root of 193147 is about 57.8046339919.

It can be divided in two parts, 19314 and 7, that added together give a square (19321 = 139²).

The spelling of 193147 in words is "one hundred ninety-three thousand, one hundred forty-seven".